1ETJ:
reference: X-ray structure determination and characterization of the Pseudomonas aeruginosa azurin mutant Met121Glu., Karlsson BG, Tsai LC, Nar H, Sanders-Loehr J, Bonander N, Langer V, Sjolin L, Biochemistry 1997 Apr 8;36(14):4089-95. PMID: 9100002

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